Device for improving combustion in oil burners



Oct. 3, 1939.

c. slEBRlNG DEVICE FOR IMPROVING COMBUSTION IN OIL BURNERS Filed Jan'.12, 1958 INVENTOR ATTORNEY Jem Patented Oct. 3,*1-939 DEVICE FDR`IMPROVING COMBUSTION IN OIL BURNERS Claude Siebring, George, IowaApplication January 12, 1938, Serial No. 184,569

sclaims.

My invention pertains to an improvement in oil burners.

An object of my invention is to provide;v in an oil burning stove,auxiliary means for improving 5 the combustion eiect in the stove. .f

A further object of my invention is to provide a device of thischaracter which momentarily retards the flame or the ow of unburnedgases so that the same can be then more completely mixed l with air toinsure a more `complete combustion.

A further object of my invention is to provide a simple device of thischaracter which can be adjusted for different conditions for supplying agreater flow of air or less as desired.4

A further object of my invention is to provide a combustion improvingdevice which can be easily installed. Y A. further Vobject of myinvention-is to provide a device of this character which will not getout 20 of order, due to the absence of movable parts and the like.

A further object of my invention is -to provide a device of thischaracter which can be constructed at a reasonable cost.

With these and other objects in view, my invention consists in theconstruction, arrangement and 'combination of the various parts of myde-` vice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, point- 30 ed out in my claims, and illustrated inthe acc'mpanying drawing, in which:

Figure lis a sectional view taken longitudinally through an oil burningstove,

Figure 2 is an enlarged sectional detail taken 35 along the lines 2 2 ofFigure 1,

Figure 3 is a slightly modied form, Figure 4 is -a sectional view takenalong the lines .4 4 of Figure 2, and

Figure 5.is a sectional view taken substantially 40 along the lines 5 5of Figure 3.

I have'used the character I 8 to designate an upright vertical fluewhich includes the cap' II.

A further iiue I2 which acts as a chimney is spaced from the ilue I8 andattached between 45 the nues lo and lz is a suitable tank la whichcontains the oil supply. The tank I3 includes` ent material 2| which issituated at the bottom of the ue I0. f 'I'he material 2l is retained irrplace by means of the forwardly projecting ilange member 22 which isattached to the bottom of the further horizontal combustiony chamber 23.The combustion. chamber 23 communicates directly with the iiues I0 andI2 as shown. The flame is initiated in the usual manner by lighting theabsorbent member 2| upon which-the oil is drip- 10 ping`from the dripvalve I8. The ame -thus initiated ,will burn within the flue I8 it beingunderstood that suitable openings are provided for the air inlet and theburned gases will flow in the direction of the arrow-24 through the 15chamber 23 and thence upwardly through the chimney flue I2. Air isfedinto the burner in the usual ymanner through any suitable opening inthe capl I I.

Normally, the burning effect is incomplete and a great deal of smokewill pass upwardly through the .chimney ilue I2. To olset this effect,1I provide in my device, a lengthened vertical rod 2 5 which entendsupwardly and practically to the vtop of the flue I 0. The rod 25 isattached at 28 25 between the two arcuate members 21 and 28. Theyarcuate members 21 and 28 form substantially approximately one-half ofthe circumference of the surrounding flue I0 and can be merged togetherwith the integral anges 29. However, there-is no covering member overthe upper portions of the, members 21 and 28 thereby leaving a freeopening at 30 between such members.

Formed at the lowerportion of the members 21 and 28 are thesubstantially V shaped cutaway portions 3| leaving openings at 32, withthe rear member 28 including similar openings positioned in a staggeredmanner as shown in Figure 4. v

In use, the points at the terminations of the V portions 3| are restedupon the asbestos or other member 2| and the rod 25 'which can beslightly bent is allowed to rest against the inner wall of the flue asshown in Figure 1. The flame is started in the burner and the followingaction takes place.

The members 21 and 28 act as a pair of baille plates to restrict theflame from passing too rapidly into the horizontal combustion chamber23.

During momentary blocking of the flame, a column of air will traveldownwardly in the directiomof the arrow 33 (see Figure 5) between thewalls of thev flue lllf'and the outer member 28 and this column of airwill. also pass directly between the arcuate baille plates 21 and 20. As

a result, a column of pure air is flowing down.- wardly at thesepoints,` which air will mix with the unburned vapors resulting in morecompleteI l5 oxidation of the flame and' practically completely` burningthe smoke or carbon particles. The residue then passes up the-chimneyflue i2, which residue is clean and free from smoke.

1^ The staggered arrangement of-` the V-shaped .lo portions 3l also inthe momentary retardation of the flame and\creates an additionalcirculatory effect which assists in the action .above described. Thearrangement above described, Aprovides for a double column of al1",/which-in this case, would beseparated by Vthe outer arcuate memberl2li. It will be noted that f the arcuate members 21 and 28 extendupwardly a 'substantial distancesov as to ,completely cover the openingof the combustion chamber 23 where it merges with the ilue I0.

A slightly modified form vof this structure is shown in Figures 3 and 5wherein a single baille member 34 is used instead of two of the same.

The otherfeatures are identical with the excep- 25. tion, however, thatin the use of the single mem-v ber, the column of airis not split intotheee portions as in the modification shown in Figures l, 2, and 4. 'if- It will now beseen that Ihavel provided a device for improvingcombustion in oil burners, which momentarily retards the uhburned llameportions in such burner to'allow a more complete mixing `of airtherewith, and which providesfeatures for providing anfadditional columnorV columns of air which mixes with the flame at the proper point. Itwill be seen further that I have provided such means lin a device `whichcan be manufactured at a reasonable cost and which `is simple inoperation. Other advantages will 4g ube readily apparent Afrom thedescription.

Some changes may bernade in the construction and arrangement of theparts 0L my y.invention without departing from the real spirit andpurpose of my invention, and it is mygintention to cover by my claimsany modified forms cf structure or use of `mechanical equivalents,which'may be reasonably included within their scope.

I claim as my invention: l.A In a device of the class described, ahousing having a vertical compartment and a horizontal compartmentcommunicating with the bottom of said vertical compartment, a fuel tankAsupported by the vertical'- portion of said housing, a pipe leadingfrom said tank for terminating within said vertical compartment, a valvefor regulatmember having notches in its bottom marginal edge looselyresting on the bottom of said vetical compartment, and an elongatedhandle extending from said spade to facilitate the manual placement ofsaid spade in various positions in said vertical compartment.

2. In a device of the class described, a housing having a verticalcompartment and a horizontal compartment communicating with the'bottom.of-'said vertical compartment, a fuel tank'supported by the verticalportion of said housing, a pipe leading from said tank for terminating'I0 within said vertical compartment, a valve for regulating the flow ofa fuel through said pipe,

a spade member having its bottom edge loosely resting on the bottom ofsaid vertical compartment, and an elongated handle extending from ingthe flow ofa `fuel through said lpipe., a spadef said member tofacilitate the manual placement of said spade member in verticalcompartment.

3. I n combination with an oil burning stove of the type having a stovebody including uprightf iiues and a combustion chamber therebetween, anadjustable baille plate adapted to be positioned within one of saidupright iiues and `spaced from the wall thereof and adjacenttosaidcombustion chamber, said baille plate adapted to extend transverselyto substantially m cover the width of said combustion chamber and saidbaille plate having a plurality of lower openings, arnextended verticaladjusting rod attached to the baille plate and extending upwardly withinsaid iiue for varying the draft through the l5 combustion chamber.

4. In combination with an oil burning stove of the type having a stovebody including upright cylindrical ilues and a combustion chambertherebetween, an adjustable baille plate adapted to be positioned within011ev of said upright ilues -f and spaced from the Wall thereof andadjacents 'to said combustion chamber, said baille plate lhaving aplurality of lower openings, said baille plate being arcuate in shapeto'follow substan- 25 tially the curvature of the flue, an extendedverti- Ocal adjusting rod attached to said baille plate and extendingupwardly within said flue for various positions in saidl varying thedraft"4 through the combustion chamber.

5. In combination with an oil burning stove of the type having a stovebody including upright cylindrical fiues anda. combustion chambertherebetween, an adjustable baille plate adapted to be positioned withinone-of said upright ilues 35 and spaced from the wall thereof andadjacent toJ said combustion chamber, said baille plate having apluralityof lower openings, said baille plate being arcuate in shape tofollow substan-` tiallyithe curvature of the flue, and extended ver- 40tical adjusting rod attached to said baille plate v and extendingupwardly within said flue for varying the; draft through the combustionchamber, said openings being cut away from the lower edge of saidbaillepla'te in V-shaped formation.

6. In lcombination with an oil burning stove of the type having a stovebody including upright cylindrical nues and a' combustion chambertherebetween, an adjustable baille member including an inner arcuatebaille plate and an .o outer arcuate baille plate spacedA therefrom,openings communicating through said bafile plates from said flue intosaid combustion chamber, the openings of the inner baille plate beingstaggered with respect to the openings of said outer baille u plate.

7. In combinationwith an oil burning stove of the type having a stovebody including upright cylindrical iiues and a combustion chambertherebetween, an ladjustable baille member in- 00 cluding an innerarcuate baille plate and an outer arcuate baiile plate' spacedtherefrom, openings communicating through said baille plates from saidflue into said combustion chamber, the openings of the inner bailleplate being staggered f with respect to the openings of said outer bameplate, an extended vertical adjusting rod attached to said baille platesand extending upwardly within said flue for varying the draft throughthe combustion chamber.

8. In combination with an oil burning stove of,the type having a stovebody including upright cylindrical flues and@ combustion'cham bertherebetween, an adjustable baille member including an inner arcuatehaine plate and an outer arcuate bafiie .plate spaced therefromn rodattached to said baille plates and extending upwardly within said iluefor varying the draft through the combustion chamber, said baille platesfollowingasubstantially the curvatureof the flue.

ACLAUDE SIEBRING.

